Internal-combustion motor and fuel-feed therefor



A. WINTON.

INTERNALCOMBUSTION MOTOR AND FUEL FEED THEREFOR.

. A PPLICATION FILED OCT. 16, 1916. 1,401,746. v E Patented Dee. 27,1921,

2 SHEETS-SHEET I.

. A. WINTON. INTERNAL COMBUSTION MOTOR AND FU EI. FEED THEREFOR.

Patented Dec. 27,- 1921 MN QM m f w i;

NT OFF;

ALEXANDER WINTON, 01? LAKEWOOD, OHIO.

To all whom it may concern:

Be it known that I, ALEXANDER WINTON, citizen of the United States,residing at Lakewood, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Internal-CombustionMotors and Fuel-Feed Therefor, of which the following is aspecification.

This invention relates to internal combustion motors and particularly tofuel feeding mechanism such as is shown in my copending application,Serial No. 5995, filedvFeb. 4, 1915, for internal combustion motors.

The present invention is for an improved type of cut-off utilized in thefuel supply and preferably actuated by the fuel pump and regulated bythe governor for cutting off the supply of fuel on the intake stroke ofthe fuel pump and limiting such supply at that time to the desiredcharge. In the embodiment'shown the cut-off is in the nature of a slidevalve which is circular and is provided with a supply port adapted toregister withthe supply port leading to the pump, the time of movementof the supply port in the slide valve across the port leading to thefuel pump determining the volume of fuel passing to the pump on itsintake stroke thus determining the amount of the charge.

The invention may be further briefly summarized as consisting in theconstruction and combination of parts hereinafter set forth in thefollowing drawings, description and claims. I

Referring to the drawings Figure 1 is a side elevation of a portion of amultiple cylinder internal combustion motor provided with my device;Fig. 2 is an enlarged view of the fuel pump feeding mechanism showingthe several fuel injecting devices; Fig. 3 is a sectional view showingthe arrangement of the pump and its slide valve or cut-off and Fig. 4 isan enlarged detailed view showing the arrangement of the cut-off valvestructure.

In the embodiment shown 1 represents the crank case of an internalcombustion motor provided with a cylinder 2 having pistons not shown ofany preferred construction. The engine isprovided with a suitablegovernor 3 having a grooved collar 4 adapted to actuate a governor lever5 pivoted at 6 to the frame work of the engine. The governor lever 5 isconnected to a downwardly extending rod 7 which in turn is connected tothe Specification of Letters Patent.

INTERNAL-COMBUSTION MOTOR. AIN'D FUEL-FEED THEREFOR.

Patented Dec. 27, 192i.

Application filed October 16, 1916. Serial No. 125,978.

controlling device of the fuel injection mechanism as will appear.

The fuel injection mechanism comprises a hous ng 8 having a fuel supplymanifold 9 provided with a pluralitv of supply ports 10 corresponding innumber to the number of cylinders. These supply ports 10 register anleading to the several cut-ofl opemn s 12 arranged 1n a main pump andcut-off rame 13. All of these cut-ofi openings 12 communicate with acommon source of fuel supply 14. The main pump and cut-oil frame. isprovlded with a plurality of pump barrels 15, one for each cylinder, andthese receive theseveral fuel injecting plungers 16 each of which isprovided with a suitable stuffing box structure 17 and a cross headportion 18 aving a bearing in a cross head vguide 19. Each cross head isprovided with a air of upwardly extending cars 20 space apart and bothto engage within cars 21 of a fork forming a part of an eccentric strap22 engaging an eccentric 23 upon an eccentric shaft 24. Passing throughthese ears 20 and 21 1s a pivot pin 21. Each of the pump barrels 15 isprovided with a laterally extending port 25 leading 26 of the frame 13.26 and the manifold portion 9 are a pluralltv of valve members 27provided with suitable recesses forming seats for a plurality of inletvalves 28. Above the portion 26- are a plurality of valve members 29having openlngs for receiving discharge valves 30.

he uppermost valve member is connected to the discharge pipe 31 leadingto the-corresponding engine cylinder.

The shaft 24 is mounted in suitable bearings 32 in the housing and isdriven by a suitable gear 33 meshing with the gear 34 of any suitabledriven shaft erably the cam shaft 35. From the foregoing it will be seenthat when the shaft 24 is rotated the several fuel injecting pumpplungers will be reciprocated at the'proper out through a portioncommunicate with other supply ports 11 I Between this portion of theengine, preftime due to the fact that the eccentrics 23 are mechanism tobe derality of individual cut off devices actuated and operated by thecorresponding fuel injecting pumps and they are all regulated by acommon regulating mechanism under the control of the governor and thismech-.

anism will now be described. I

Slidably mounted in each of the cut off openings 12 is a cut off valverod 34 passing through a suitable stufling box structure 35 andpivotally connected at its upper end to a -out the extent of the severalinjecting devices and at its ends connected to cranks 42- secured to orformed integral with. an.

operating shaft 43. V r

. The-lower end of the cut off valve rod is bored to form a chamber 44which extends for a short distance into the rod and communicates with alateral port or cut-off opening 45 adapted to register with the opening11 and permit the passage of fuel to the injecting pump at the propertime. In order to prevent leakage about the rod 34 and to insure aperfect closure 'of the port 11. against leakage of fuel into this port,suitable mechanism is provided for forcing this rod against the wall ofthe opening 12 about the port 11. This mechanism comprises a follower 46slidably mounted in a suitable guide opening 47 and having a chamber 48extending inwardly from one end for receiving a coiled spring 49 whichthrusts against a suitable plug 50 threaded into the wall of theopening47. I

The foregoin description so far as the cut off mechanism is concernedhas been confined to one separate device but it is obvious that there isone distinct and inclependent cut off rod and lever for each injectingpump. Secured to the shaft 43 outside of the housing is a controlleractuating lever 51 pivotally connected to the downwardly'extending rod 7in turn connected to the governor lever 5.

Fuel is supplied to the opening 14 through a supply pipe 52.

In operatlon, for example, it is assumed that fuel preferably underpressure is supplied to the supply pipe 52 and that the englue isoperating at half speed with the governor set to regulate the cut-offmechanism at this pointand the description of the operation willbeconfined to one complete injecting device which will suffice for all.

As the plunger 16moves upwardon its receiving stroke the lever 38 ismoved in a clockwise direction about the crank rod 41 as a fulcrum. Thiscauses the cut 0% valve memes and further supply of fuel to the pumpbarrel will be stopped, the plunger finishing its stroke and drawing apartial vacuum for that portion of the stroke. Any leakage from thesupply to the opening or port 11 is prevented by the follower 46 whichforces the cut off rod against the wall of the cutoff opening 12 aboutthe opening or port 11. If the speed of the engine should drop orincrease over that at which the governor is adjusted then the positionof the crank rod 41, or in other words the fulcrumof the several levers38, will be moved in proper manner to adjust the time of the cut off ofthe several out off devices to account for the variation in speed andwill bring; the

engine back to its proper speed. It is ob vious that the crank rod maybe'actuated by the governor as shown or ,by any other mechanism such asa hand controlled device. Having described my invention, I claim 1. In'an internal combustion motor, a cylinder, a pistontherein, a fuelinjecting .device for said cylinder having a capacity for a maximumcharge and having a constant stroke, means in open communication withsaid fuel injecting device for supplying fuel in unmeasured quantitythereto, means actuated by said fuel injecting device for interruptingthe fuel supply to said device on the suction stroke thereof fordetermining the volume of the charge, and a check valve mechanism insaid supply.

2. In an internal combustion motor, a cylinder, a piston therein, a fuelinjecting device for said cylinder having a capacity for a maximumcharge and having a constant stroke, means in open communication withsaid fuel injecting device for supplying fuel in unmeasured quantity tosaid fuel injecting device, means actuated by said fuel inhaving acapacity for injecting a maximum charge and having a constant stroke,means in open communication with said fuel injecting device forsupplying fuel in unmeasured quantity to said fuel injecting devices,independent means individual to each fuel injecting device forinterrupting the fuel supply to each fuel injecting device on thesucmomma tion stroke thereof for determining the vol.- ume of thecharge, mechanism for controlling the operation thereof, and a checkvalve in the-supply to each injecting device.

4. In an internal injecting device for each cylinder and each having acapacity for injecting a maximum 1 charge, means in open communicationwith the fuel -mg devices,

' said fuel injecting device for supplying fuel injecting device foreach-cylinder and each.- a maximum charge cut off the supply of inunmeasured quantity to said fuel injecting devices, individual cut-61fmechanism for each fuel injecting device arranged" in the supply andcomprising a cut off to positively the supply to each fuel injectingdevice, and mechanism for'operating said out offand actuatedduring theand by the corresponding fuel injecting means for interrupting the fuelsupply-for determining the volume of the charge:

' Q6. In aninternal rality of cylinders, pistons therein, a fuelinjecting device for each cylinder and each having a capacity forinjecting a maximum charge, means in -'open'- communication with eachfuel injecting device for supplying fuel in unmeasured quantity thereto,cut off mechanism comprising a cut ofi valve in the inlet of eachinjecting device, a check valve in the supply to'each fuel injectingdevice, a(:-

tuating levers therefor each connected at one point to its cutoff valveand at another to an operating part, a fulcrum for each lever, and meansfor varying the fulcrum point of said levers and thereby varying thetime of cut off of said out 01f valves.

7;; In an internal combustion motor, a plurality of cylinders, pistonstherein, a fuel avmg a capacity for and each having anintakestroke,means for 4 supplying fuel to all of said injecting devices inunmeasured quantity, operating mechanism for said devices, and cut offmechanism individual to the several devices,

and each comprising a casing connected to the supply and to combustionmotor, a plu-v rality of cylinders, pistons therein, a fuel meansindividual to each fue in the volume of the charge, a in the supply toeach fuel in-..

to the supply .governin the o eratin fuel,acheckvalvein.d p

suction stroke thereof JQCl'Jlilg device, a cut-off member orinterrupting the passage of fuel to the corresponding fuel'injectingdevice, an operating lever connected to said cut off member and actuated.by the means for operating the corresponding fuel injecting device, andmeans for controlling the operation of said lever. I

8. In an internal combustion motor, a plurality of cylinders, pistonstherein, fuel injecting devices each having a capacity for a maximumchar e and each having an intake stroke, means for supplying fuel to allof said injecting devices in unmeasured quantitg, operating mechanismfor said devices an cut off mechanism individual to each de-' vice andeach comprising a casing connected injecting device, a cut off rod forinterrupting'the passage of fuel to the corresponding .fuel injectingdevice, an operating lever connected to said cut off rod and actuated bythe means for operating fuel injecting device, there being a lever foreach fuel injecting device, a controlling-device engaging one end ofeach of said levers the correspondin fuel inand to the correspondingfuel the corresponding and changing its. fulcrum point thereby varyingthe time of cut off, and means for evice.

9. In an internal combustion inder, a piston therein, vice for saidciylinder'having a capacity for a maximum 0 arge and having "a constantstroke,

device for supplying fuel in unmeasured quantity thereto, means at:-tuated by said fuel injecting terrupting the fuel supply to the suctionstroke thereof-for determinin the volume of the char 'and a plurality ofcheck valves arranged in tandem in said supply. A f

I0. In an internal combustion motor, a plurality of cylinders, pistonstherein, fuel injecting mechanism comprising a, fuel injecting devicefor each cylinder and each having a capacity for in ecting -ma ximumcharge and having a constant stroke, means 1n open communication witheach fuel inh s ALEXANDER WINTON.

of said controlling motor, a cyl-- a fuel injecting de-' means in opencommunication with said fuel injecting combustionmotor, a plu;

device for insaid device on

